Zobrazeno 1 - 10
of 24
pro vyhledávání: '"A. V. Toporensky"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-19 (2024)
Abstract We study the energy–momentum characteristics of the plane “+”-polarized gravitational wave solution of general relativity in the teleparallel equivalent of general relativity (TEGR) and the symmetric teleparallel equivalent of general
Externí odkaz:
https://doaj.org/article/6129ce6a419948aead643d2ccf89f5b6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 7, Pp 1-11 (2023)
Abstract The problem of the speed of the objects inside the Schwarzschild black hole is considered. The general result is that the value of the relative speed of the objects following their non-zero angular momentum trajectories, both of geodesic and
Externí odkaz:
https://doaj.org/article/7afd1eaf08c24af8a3f6abd2539169b4
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 5, Pp 1-12 (2023)
Abstract We derive conservation laws in Symmetric Teleparallel Equivalent of General Relativity (STEGR) with direct application of Noether’s theorem. This approach allows us to construct covariant conserved currents, corresponding superpotentials a
Externí odkaz:
https://doaj.org/article/f764ac2965814b49b28a833e7aada01a
Autor:
A. V. Toporensky, O. B. Zaslavskii
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-9 (2023)
Abstract We consider general radially moving frames realized in the background of nonextremal black holes having causal structure similar to that of the Schwarzschild metric. In doing so, we generalize the Lemaître approach, constructing free-fallin
Externí odkaz:
https://doaj.org/article/d74d0ba1328e4d50aaf4e827aacaf095
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-20 (2021)
Abstract We examine various methods of constructing conserved quantities in the Teleparallel Equivalent of General Relativity (TEGR). We demonstrate that in the covariant formulation the preferred method are the Noether charges that are true invarian
Externí odkaz:
https://doaj.org/article/b34313500f094f9990b5f87f9d6e6fcc
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-8 (2020)
Abstract We consider certain aspects of cosmological dynamics of a spatially curved Universe in f(T) gravity. Local analysis allows us to find conditions for bounces and for static solutions; these conditions appear to be in general less restrictive
Externí odkaz:
https://doaj.org/article/be0be71b61764e05a1f1a88cf03a0d2e
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 10, Pp 1-12 (2019)
Abstract We consider the cosmological evolution of a flat anisotropic Universe in f(T) gravity in the presence of a perfect fluid. It is shown that the matter content of the Universe has a significant impact of the nature of a cosmological singularit
Externí odkaz:
https://doaj.org/article/1418ed54589c48f6a0b7c556165961e0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-7 (2018)
Abstract Recently the cosmological dynamics of an anisotropic Universe in f(T) gravity became an area of intense investigations. Some earlier papers devoted to this issue contain contradictory claims about the nature and propertied of vacuum solution
Externí odkaz:
https://doaj.org/article/759eac446e304aea82eac5aeb2598725
Publikováno v:
Symmetry, Vol 14, Iss 1, p 40 (2021)
We consider a space-time of a spherically symmetric black hole with one simple horizon. As a standard coordinate frame fails in its vicinity, this requires continuation across the horizon and constructing frames which are regular there. Up to now, se
Externí odkaz:
https://doaj.org/article/e5ce337b89f64453a1f631bdbe18b1bc
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 19
In this paper we generalize our previous results on spin connection for the linear scalar cosmological perturbation in $f(T)$ theory to wider class of theories which includes a scalar field $\Phi$ non-minimally coupled to torsion, and allows $\Phi$-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5db80eea6fb460f5b4136e44f45bd25
https://doi.org/10.1142/s021988782250147x
https://doi.org/10.1142/s021988782250147x